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    题名: Statistical comparisons of some external morphometrical aspects of the swimming crab Protunus sanguinolentus (Herbst) between the Keelung Shelf and the Taiwan Bank
    作者: Chang, H. C.;C. C. Hsu
    贡献者: Department of Biotechnology
    关键词: Morphometric characters;Size at maturity;Canonical discriminant analysis;Likelihood ratio test
    日期: 2004-06
    上传时间: 2010-03-15 08:12:10 (UTC+0)
    出版者: Asia University
    摘要: Five external morphometric characters and size at maturity in carapace
    width of the swimming crab, Protunus sanguinolentus, were examined
    and compared between sampling groups obtained from the Keelung Shelf
    and Taiwan Bank. The external morphometric characters used in the present
    study are: carapace width, carapace length, distance between two sides of
    first spine, fifth abdominal segment width, fifth abdominal segment length,
    chela length, chela width and movable dactylus length. Two statistical approaches
    were applied, i.e. multivariate morphometric analysis was used to
    compare external morphometric characters and a likelihood ratio test was
    used to compare maturity curves. Both results obtained show significant
    differences between the two sampling groups. The size at maturity was represented
    by LM50 and estimated theoretically from maturity curves, indicating
    that LM50 for females is 97.00 mm CW in Keelung Shelf, and 82.36
    mm CW in Taiwan Bank, whilst for males it is 92.62 mm CW in both areas.
    The results of statistical comparisons are coincident that external morphometric
    characters of female Protunus sanguinolentus between the waters
    off the Keelung Shelf and the Taiwan Bank are significantly different
    關聯: TAO 15(2):179-197
    显示于类别:[生物科技學系] 期刊論文

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